—Did you listen to the report last Friday?
—Yes, it was about the shortage of immigrant workers. That was the first time I about the subject.
A. have heard
B. was hearing
C. would hear
D. had heard
网友回答
A. have heard
B. was hearing
C. would hear
(答案→)D. had heard
解析：D 考察时态。It/This/That was the first time that句型中，从句使用过去完成时。